PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/18-18:43:10
G10     297.9          51.6               12.0 +/-    1.12      14.9 +/-    1.12  0.060 / 0.080
G14     210.5          13.3               13.0 +/-    3.00      33.8 +/-    3.00  0.050 / 0.090
G15     45.8           26.4               11.8 +/-    1.59      22.3 +/-    1.59  0.070 / 0.160
G18     3.7            65.6               10.8 +/-    0.86      11.7 +/-    0.86  0.070 / 0.200
G20     71.5           18.8               11.4 +/-    1.22      25.8 +/-    1.22  0.030 / 0.050
G21     105.3          69.6               13.1 +/-    0.82      13.9 +/-    0.82  0.030 / 0.050
G24     98.0           26.9               17.0 +/-    0.64      31.8 +/-    0.64  0.070 / 0.130
G27     297.9          35.4               11.9 +/-    0.69      18.8 +/-    0.69  0.070 / 0.130
G32     211.6          31.2               14.5 +/-    2.99      24.8 +/-    2.99  0.090 / 0.120